Heating system



Oct. 29, 1929. -w. s. EDSON ET AL 1,733,187

HEATING SYSTEM Filed April 2, 1928 -l llllll Patented Oct. 29, 1929UNITED STATES PATENT OFFICE WALTER S. EIDSON AND FRANK G. EDSON, OFDALLAS, TEXAS; SAID WALTER S. EDSON ASSIGNOR TO SAID FRANK G. EDSONHEATING SYSTEM Application filed April 2, 1928.

This invention relates to new and useful lmprovements in heatingsystems.

In the usual heating system, such as stoves,

furnaces and radiators, the air is heated by radiation with very littlecirculation. Consequently the hot air rises to the ceiling and hangswhile the remainder ranges in stratas of graduated lower temperatures,down to the coolest at the floor. In some instances air currents havebeen forced over highly heated surfaces and circulation attempted inthis manner.

One object of our invention is to force a circulation of air in suchvolume and with such rapidity as to efficiently and comfortably heat aroom or space without the use of high temperatures, whereby all the airis kept constantly moving, high ceiling temperatures are avoided, wallsweating is eliminated, and a low fuel consumption is had.

' A further object of the invention is to provide a heating system whichis also a venti1ating system and is more healthful because a moderatetemperature may be employed and hot spots in the room or spaceeliminated.

Another object of the invention is to provide a heating appliance whichmay be produced in the form of a piece of furniture, such as a cabinetor a stand, and which will not become excessively hotlike a stove orfurnace.

A construction designed to carry out the invention will be hereinafterdescribed, together with other features of the invention.

The invention will be more readily understood from a reading of thefollowing specification and by reference to the accompanying drawings,in which an example of the invention is shown and wherein:

, Fig. 1 is a side elevation of a heating cabinet constructed inaccordance with the invention,

Fig. 2 is an end elevation of the same,

Fig; 3 is a longitudinal vertical sectional view of the same,

Fig. 4: is a transverse sectional view taken on the line 4:& of Fig. 1,

Fig. 5 is a view partially in plan and partially in section, and V Fig.6 is a transverse sectional View taken on the line 6--6 of Fig. 1.

Serial No. 266,754.

In the drawings the numeral 10 designates cabinet supported on legs 11and having a flat top 12 forming a seat. In one end the cabinet has aswinging door 13. The cabinet has a bottom 14; provided with draft ports15 and an air admitting opening 16.

The interior of the cabinet is divided by a transverse verticalpartition 17 into an air intake and heating chamber 18 and an airexhaust or discharge chamber 19. The partition 17 terminates short ofthe top 12 of the cabinet so as to permit the heated air currents topass from the chamber 18 to the chamber 19. In one side of the cabinetis a grille 20 located to admit air to the chamber 18.

I/Vithin the chamber 18 is a heating unit 21 comprising upright sideplates 22 having air admitting ports 23. Above the ports horizontalbafile plates 24 connect the plates 22, while a perforated top plate 25is mounted across the upper ends of said side plates. The baflie plateshave elongated slots 26 disposed in staggered relation, so that theprodacts of combustion rising from a burner 27,

together with the upwardly flowing air currents are caused to take acircuitous path before escaping through the perforations of the top 25.The burner 27 is connected to a pipe 28 extending through one side ofthe cabinet for supplying gas or other fuel. Access to the burner is hadby swinging the door 13, as is shown in dotted lines in Fig. 3.

The heating unit 21 is spaced from all the Walls of the chamber 18 anddoes not extend above the partition 17. In the chamber 19 is mounted asuitable electric fan 29, the details of the mounting not beingdescribed, as these together with the particular structure ofthe chambermay be varied to suit conditions. The fan is mounted to discharge airthrough a screened opening 30 in one side wall of the cabinet. To keepthe fan motor cool, a flue 31 extending through one side wall of thecabinet, telescopes the motor housing.

To insure successful operation the suction of the fan must not disturbthe flame of the burner 27 and for this reason the baffles 24;, the top25 and the partition 17 are provided. It is important that the heatingHower, the volume of air passing through the heating chamber 1sconsiderable. The

' supply of air being slightly in excess of the capacity of the fan,causes the air passing through the chamber 18 to absorb heat by contactwith the walls of the heating unit and the chamber and admixture withthe products of combustion from the burner. This permits the use of alow flame which effects economy in fuel and avoids any dangerousliberation of carbon monoxide gas, so that the use of a venting flue isnot necessary. The restricted passage between the top 12 of the cabinetand the upper edge of the partitionl? causes a slight acceleration ofthe flow of the upper strata of the air from theheating chamber to thefan chamber 19 while the body of the mixture is confined within theheating chamber.

Owing to the circulation of the air through the cabinet and the rapiditywi 11 which it is propelled by the fan, it is not necessary to heat theunit 21 to a high tem perature. In practice the air in the chamber 18 isheated to only a few degrees Faren- .heit above the room temperaturedesired.

The heated air discharged from the opening 30 is not excessively hotlike that coming from a stove, radiator or furnace grille.

As an illustration, if it was desired to maintain a temperatureof 72degrees Farenheit in the room, the temperature of the air dischargedfrom the exhaust chamber 19 through the opening 30 would not be over 80degrees Farenheit. By this system about three times the circulation ofair is had as is with the usual system; therefore, the air does'not hangat the ceiling and a ventilating feature is added by the constantmovement of the air. Nor is it necessary to gen erate excessive heat andradiate this excess to maintain a comfortable temperature.

It is obvious that the system is not confined to the cabinetillustrated. However,

the flame must be protected from undue agi tation by the fan and theburner must be closely coupled with the fan to prevent undue travel ofthe heated air before its discharge by the fan, in order to avoidheating the air excessivelv and also in order to maintain a low fuelcost.

Various changes in the size and shape of the dillerent parts, as well asmodifications and alterations, may be made within the scope of theappended claims.

What we claim is:

1. In a heater, a cabinet having a heating chamber provided with airinlets in its bottom and an air inlet in one side and also provided Withan exhaust chamber having an air discharge opening in its side, aheating unit in the heating chamber including a burner and a pluralityof bafiles above. the burner, and an electric fan in the exhaust chamberdrawing heated air from the heating chamber and discharging it throughthe opening of the exhaust chamber.

2. In a heater, a cabinet having a heating chamber provided with airinlets in its'bottom and an air inletin one side and also provided withan exhaust chamber having an air discharge opening in its side, aheating unit in the heating chamber including a burner and a pluralityof baflles above the burner, an electric fan in the exhaust chamberdrawing heated air from the heating chamber'and discharging it throughthe opening of the exhaust chamber, and a transverse partition 1n thecabinet separating the chambers and proing heated air from the heatingchamber, a

flue extending to the exterior of the casing and enclosing the fanmotor, and a pivoted closure for the end of the heating chamber next theheating unit therein.

4:. In a heater, a cabinet having a heating chamber provided with airinlets in its bottom and also provided with an exhaust chamber having anair discharge opening, a heating unit disposed abovethe air inlets oftheheating chamber and including a burner and a plurality of baflles abovethe burner disposed in communication with said air inlets, a partitionat the end of said ballles next the exhaust chamber forming a restrictedpassage at the top of the cabinet, and an electric fan in the exhaustchamber for drawing heated air and products of combustion from abovesaid partition and discharging it through the opening of the exhaustchamber.

5. In a heater, a casing having an air inlet at its base and an airoutlet, a fluid burner within the casing located above the air inlet sothat the products of combustion flowing therefrom will mix andcommingle' with the air entering and passing through the casing, andmechanically operated means at the air outlet communicating with theburner at the upper portion of the casing for setting up a circulationof air through the casing and discharging it through said outlet,whereby the indrawn air and products of combustion are commingled anddischarged as a common heating fluid.

6. In a heater, a casing having an air inlet at its base and anairoutlet, a fluid burner within the casing communicating with theinnets of combustion flowing from the burner to permit admixture of airtherewith.

7. In a heater, a cabinet having a heating chamber provided with airinlets in its base and one side wall'thereof and also having an exhaustchamber at one side of the heating chamber and provided with an airdischarge, a partition intermediate the chambers open only at the topthereof, an electric fan in the exhaust chamber, and a burner in theheating chamber disposed over the air inlet in its base to effectcommingling of the products of combustion with the indrawn air.

In testimony whereof we aflix our signatures.

WALTER S. EDSON. FRANK G. EDSON.

